The invention provides a battery SOC correction method, device and system and a readable storage medium. The method comprises the steps that the display SOC of a battery, SOCmax corresponding to the highest monomer voltage and SOCmin corresponding to the lowest monomer voltage are acquired; calculating a difference value between the SOCmax and the display SOC to obtain a first SOC difference value, and calculating a difference value between the SOCmin and the display SOC to obtain a second SOC difference value; whether the display SOC of the battery needs to be corrected or not is judged according to the size relation between the first SOC difference value and a preset correction threshold value or the size relation between the second SOC difference value and the preset correction threshold value in combination with the operation condition of the battery; and if the display SOC of the battery needs to be corrected, selecting a calibration weight value corresponding to the first SOC difference value or the second SOC difference value in combination with the operation condition of the battery to correct the display SOC. According to the method and the device, the great change of a numerical value caused by correcting the display SOC by directly using the SOC obtained by looking up the table through the open-circuit voltage is avoided, the display SOC can better reflect the real state of the battery, and the user experience is improved.
本发明提供一种电池SOC修正方法、装置、系统及可读存储介质,该方法包括:获取电池的显示SOC、最高单体电压对应的SOCmax和最低单体电压对应的SOCmin;计算SOCmax与显示SOC的差值获得第一SOC差值,计算SOCmin与显示SOC的差值获得第二SOC差值;结合电池的运行工况根据第一SOC差值与预设的修正阈值的大小关系,或第二SOC差值与预设的修正阈值的大小关系判断是否需要对电池的显示SOC进行修正;若需要对电池的显示SOC进行修正,则结合电池的运行工况选取与第一SOC差值或第二SOC差值对应的校准权重值对所述显示SOC进行修正。本发明避免了直接用开路电压查表获得的SOC对显示SOC进行修正造成的数值大幅变化,且使得显示SOC更能反应电池的真实状态,提升了用户体验。
Battery SOC correction method, device and system and readable storage medium
电池SOC修正方法、装置、系统及可读存储介质
27.12.2022
Patent
Elektronische Ressource
Chinesisch
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